Calculating Unreinforced Foundation in RF-/FOUNDATION Pro

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In RF-/FOUNDATION Pro, it is also possible to calculate unreinforced foundation plates according to Chapter 12.9.3, EN 1992-1-1 [1]. To do this, you select the “Without bending reinforcement according to 12.9.3” check box in the “Foundation Plate” section of the “Details” dialog box.

The design of plain foundation slabs is carried out by keeping the ratio of foundation depth to foundation projection (overhang), provided that

0,85 · da  3 σgdfctd,pl

d Foundation height
[LinkToImage02] Foundation overhang from the column side
σgd Design value of the soil pressure
fctd, pl Design value of the concrete tensile strength

In the result windows, the intermediate values of the described design are documented in detail.


Dipl.-Ing. (FH) Alexander Meierhofer

Dipl.-Ing. (FH) Alexander Meierhofer

Head of Product Engineering Concrete & Customer Support

Mr. Meierhofer is the development leader of the programs for concrete structures and is available for the customer support team in the case of the questions related to reinforced and prestressed concrete design.


Foundation Unreinforced Concrete foundation


[1]   Eurocode 2: Design of concrete structures - Part 1-1: General rules and rules for buildings; EN 1992-1-1:2011-01


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  • Updated 7 April 2021

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